Segment Information Net Sales Attributed to Countries Representing Portion of Consolidated Net Sales (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting, Revenue Reconciling Item
Total net sales	$ 72,383	$ 56,576	$ 52,886	$ 51,042	$ 60,453	$ 43,744	$ 37,955	$ 35,714	$ 232,887	$ 177,866	$ 135,987
United States
Segment Reporting, Revenue Reconciling Item
Total net sales									160,146	120,486	90,349
Germany
Segment Reporting, Revenue Reconciling Item
Total net sales									19,881	16,951	14,148
United Kingdom
Segment Reporting, Revenue Reconciling Item
Total net sales									14,524	11,372	9,547
Japan
Segment Reporting, Revenue Reconciling Item
Total net sales									13,829	11,907	10,797
Rest of world
Segment Reporting, Revenue Reconciling Item
Total net sales									$ 24,507	$ 17,150	$ 11,146